Chapter 1
Fatigue
Harsher than its type
How short were its legs?
Utilization isn’t graded for N390XX: too few of its flights were tracked to count its use fairly, in the full report too. So its free chapter here is Fatigue, which doesn’t depend on catching every flight.
Short legs put more pressurization cycles on the structure for the same time in the air. Worth checking its cycle-based inspection limits before a pre-buy.
Hours per landingLead measure. 24th percentile
Middle 1.2N390XX0.52+1.0 : 1middle Premier I 1.2 : 1
Short hops62nd percentile
Middle 47%N390XX0%80%+52%middle Premier I 47%
Leg length29th percentile
Middle 320 nmN390XX0 nm700 nm+270 nmmiddle Premier I 320 nm